BOP and Valve Repair and Remanufacture Services
DOYLES can repair and remanufacture virtually any blowout preventor, valve, or choke manifold.
All testing, inspections, welding, and machining are performed in-house or by approved third-party vendors. In addition, all repairs are performed according to API specifications and all welding, machining, and NDE is performed by a trained staff member or by an approved third-party vendor of the customer’s choice. Document packages are also provided on request and include inspection reports, NDE reports and test charts, as well as MTR’s when applicable.
Call a sales representative today to discuss how we can assist you in your BOP and valve repair needs at 1-800-606-1606, or you can email us at salesinquiry@doylesdelivers.com.
Our capabilities include:
- Vertical and Horizontal Boring
- Milling
- Drilling
- Threading
- Welding
- Chrome Plating
- Buffing
- Polishing
- Stress Relief
- Hardness Testing
- Pressure Testing
- Disassembly
- Inspection Re-Assembly
- Testing
Blowout Preventer (BOP) Repair Process
DOYLES has extensive experience and capabilities in the repair and servicing of blowout preventers (BOPs). We use a proven methodology that adheres to inspection criteria that satisfy ISO9001:2000 and API 16A specifications.
Receiving
- Receive blowout preventer into Houston facility.
- Perform a preliminary inspection to check for possible damages as result of BOP transit.
- Systematically inspect and photograph the unit(s) as part of documentation requirements.
- Create and issue work orders.
Tear Down
- Dismantle BOP while noting any problem areas.
- Perform a tear down and segregate any obviously defective parts.
- Document all work in accordance with DVI standard operating procedures.
Cleaning
- Clean and sandblast prior to performing a complete inspection.
Inspection
- Conduct a visual and dimensional inspection of all parts in accordance with DVI inspection procedures.
- Perform a non-destructive examination on critical areas.
- Perform non-destructive testing and evaluation of components subject to normal wear and/or stress.
Estimate
- Create a formal estimate of repair cost and anticipated delivery.
- Secure customer approval of estimate.
Repair
Repair or replace parts deemed to exceed reusable limits, which may involve the following processes:
- Skim cut/pre-machine
- Material rebuild, including welding, chrome plating, metal spray
- Buff & Polish
- Stress Relieve
- Hardness Test
Final Assembly
- Perform final assembly of the repaired BOP
- Notify customer; secure 3rd party test witness if requested
Test
- Ensure that all repaired equipment conforms to ISO9001:2000 and API 16A-based test criteria
Delivery
- Construct document package
- Notify customer
- Deliver BOP per customer specifications





